baber/WOPTO huggingface dataset:
Patent GB-1475340-A (GB)
Title: Polysalt complexes and their uses
IPC: G03G5/10
Filed: 1974-11-11
Abstract: 1475340 Electroconductive coatings CALGON CORP 11 Nov 1974 [16 Nov 1973] 48639/74 Heading B2E [Also in Division C3] Electroconductive coatings include a complex formed between (a) a water-soluble strongly cationic homo- or co-opolymer of dimefhyl diallyl ammonium chloride and (b) a water-soluble weakly anionic material having a pK value of at least 3 which is maleic acid, succinic acid, glutaric acid, or a homo- or copolymer of acrylic acid or maleic acid, the molar ratio of (b) to (a) being in the range 0.05:1 to 1:1. Exemplified (a) components are poly(dimethyl diallyl ammonium chloride), and dimethyl diallyl ammonium chloride/diacetone acrylamide copolymer. Exemplified (b) components are polyacrylic acid, hydrolysed maleic anhydride/styrene copolymer, succinic acid and and glutaric acid. The coatings may be applied to paper and synthetic polymers by conventional mehods. Examples describe the coating of rosin-sized raw paper with compositions of a complex as above together with clay, hydroxyethylated starch and water; and coating of "Mylar" (R.T.M.), polyvinyl acetate, polyvinyl chloride and polyethylene with compositions of a complex as above in water or methanol.
Patent GB-1159747-A (GB)
Title: Actuator Housing for Pressurised Aerosol Dispensing Containers.
IPC: A61M15/00
Filed: 1967-10-26
Abstract: 1,159,747. Dispensing liquids by gaseous pressure. FLUID CHEMICAL CO. Inc. Oct.26, 1967 [Aug.24, 1967], No.48756/67. Heading FIR. A device for accurately controlling the discharge of a pressurized aerosol dispensing container, comprises a housing 12 for the container 10 with a socket 25 receiving the container valve stem 11, an outlet passage 13 for the container contents, and a rotatable actuating member 16 engaging the bottom of container 10 and formed with a cam groove 17 engaged by key members 18 in the housing, so that rotation of member 16 produces axial movement of container 10 and controlled opening of its discharge valve. Key members 18 are formed on a split ring 19 force-fitted in the housing, Fig. 2 (not shown). Member 16 is knurled at 24 for finger engagement. Cam groove 17 has axial entrance slots, Fig. 5 (not shown), for key members 18 to enter groove 17 when member 16 is fitted to the housing. Passages 27 vent the housing interior. The housing exterior 28 may be shaped for reception in the nasal passages when the device is used for inhalant.
Patent GB-1373360-A (GB)
Title: Method and apparatus for increasing the fullness of tone of electronic  musical instruments
IPC: G10H1/02
Filed: 1971-10-20
Abstract: 1373360 Electrophonic musical instruments A MICHEL 20 Oct 1971 [26 Oct 1970 27 Feb 1971 16 Aug 1971] 48835/71 Heading G5J The fullness of tone of an electronic musical instrument is increased by subjecting the basic synchronous tone signals to different cyclic phase shifts and allowing the phase shifted signals to beat against un-shifted signals of the same pitch. The tone signals are produced by frequency dividers 2, Fig. 5, from a master oscillator 1 and applied through fundamental filters 5 to flute outputs 10 and through cyclic phase shifters 6 and formant circuits 7 to reed outputs 9. Associated outputs 9 and 10 beat together. In a modification, Fig. 3 (not shown), each output 10 is taken after the corresponding phase shifter 6 so that outputs 9 and 10 do not beat together but will beat against an unshifted output of the same pitch. The phase shifters 6 may be located between master oscillator 1 and each divider 2, Figs. 2 and 4 (not shown), or two phase shifter may be provided for each tone, either side of the output 10, Fig. 6 (not shown). A phase shift circuit, Fig. 7 comprises a phasesplitter 13 the outputs of which are respectively connected through a capacitor 14 and a resistor 15 controlled by a v.l.f. generator 16. Resistor 15 may be a cyclically illuminated photo-resistor. An alternative phase shift circuit, Fig. 9 comprises a plurality of R-C stages the resistance elements of which are transistors 23 whose conductance is controlled by a v.l.f. generator 24. The amplitude and harmonic content of the output is kept constant by a Schmitt trigger 26.  In a modification, the individual tone signals are combined as registers and the registers are subjected to different phase shifts whereby the same tone in different beat against one another and are discernible as separate voices.
Patent GB-1519768-A (GB)
Title: Spiral staircase handrail
IPC: E04F11/18
Filed: 1975-10-31
Abstract: 1519768 Handrails PEDLEY WOODWORK Ltd 31 Oct 1975 [12 Nov 1974] 48960/74 Heading E1B A spiral staircase handrail comprises a plurality of members 2 each attached to at least one support 4 and interconnected by tubular P.V.C. dowels which can be slid in or out of apertures in the members 2 and or resiliently deformed to accommodate varying angles and curves of the handrail.
Patent GB-1330580-A (GB)
Title: Gas turbine plant
IPC: B01J19/00
Filed: 1971-10-21
Abstract: 1330580 Gas turbine plant PROGIL 21 Oct 1971 [22 Oct 1970] 49004/71 Heading F1G The invention relates to the combination of a gas turbine plant and an oxidation reactor, the residual gases from the reactor being mixed with the combustion gases passing to the turbine. The plant shown in Fig. 1 comprises an air compressor 1, a high pressure compressor 4 and a turbine 6 all mounted on a common shaft. Air from the compressor 1 passes in part, to combustion equipment 2, gases from which pass to the turbine 6, and in part to the compressor 4. Air from the compressor 4 passes to a reactor 5 and the residual gases therefrom pass to the combustion equipment 2 to serve as dilution gas. The gases discharge from the turbine 6 to atmosphere. In Fig. 4 air from the compressor 1 passes in part to the combustion equipment 2, gases from which pass to the turbine 6, the gases discharging from the turbine passing through a steam generator 8. The remaining part of the air from compressor 1 passes to compressor 4 from which it passes to the reactor 5. Residual gases from the reactor pass to the combustion equipment 2 which has a catalyst therein to ensure decomposition of any fuel component in the residual gases.
Patent GB-1112575-A (GB)
Title: Improvements in or relating to fans
Inventor: GOUGH WILFRED FELIX
IPC: F04D25/12
Filed: 1963-12-11
Abstract: 1,112,575. Ventilators. LENSCRETE Ltd. and W. F. GOUGH. 9 March, 1965 [11 Dec., 1963], No. 49008/63. Heading A5A. [Also in Division F4] The fan and motor unit 17 of an extractor ventilator automatically moves to reduce obstruction to air flow through the ventilator on the occurence of a fire. As illustrated, the unit is pivoted at 18 and held in its normal operating position by a fusible link 21. If the link melts, the unit pivots under gravity, with the assistance of spring loading at the pivot 18, to the chain line position. Such movement may automatically disconnect the electricity supply to the fan motor. A cowl 14 is also held in position by the link 21 and when the latter fuses the cowl is moved by spring loading at a pivot 20 to the chain line position. The fan motor may be disposed on the opposite side of the fan blades to that shown.
Patent GB-1021206-A (GB)
Title: Circuit arrangements utilising thermal feedback
IPC: H01L23/34
Filed: 1962-12-31
Abstract: 1,021,206. Transistor amplifier circuits. TEXAS INSTRUMENTS Inc. Dec. 31, 1962 [Sept. 7, 1962], No. 49030/62. Heading H3T. [Also in Division H1] An electrical circuit utilizing thermal coupling comprises a plurality of electrically isolated circuit elements in a semi-conductor wafer which are externally coupled together, one of the elements generating heat in response to an electrical signal, the heat being transmitted through the wafer to another circuit element which is heat-responsive. Fig. 1 shows a highgain amplifier on which input signals are applied to the base of transistor 11, the collector of which is coupled through Zener diode 17 to the base of transistor 18. The output is taken from the collector of transistor 18 and a resistor 19 carrying the collector current is thermally coupled to transistor 11 to provide low-frequency or D.C. negative feed-back. Another transistor 21 acts as a reference by being differentially connected with transistor 18 by means of common emitter resistor 18 and transistor 21 is thermally coupled to resistor 22 which takes a steady current. Fig. 2 shows a suitable construction in which a mesa transistor 11 is separated by a thin insulating layer from a silicon resistor bar 19 so that thermal coupling is provided. A similar arrangement may be used for transistor 21 and resistor 22. Alternatively the resistor and transistor may be in the same semi-conductor block and separated by a PN junction. Fig. 3 shows the circuit of a thermal negative feed-back arrangement used to stabilize the temperature of a semi-conductor substrate which may contain a Zener diode. The base 31 of transistor 30 is normally biased slightly below cut-off and the collector 33 is directly connected to the base 41 of transistor 40 so that 40 conducts heavily; this conduction heats the region adjacent the collector 43 which includes transistor 30 which starts to conduct thus reducing the base-emitter bias for transistor 40 and therefore the collector dissipation. The circuit stabilizes where the temperature of the wafer is such that transistor 30 is slightly conducting. The wafer also contains diffused P regions 34, 35 and 38 acting as resistors for the circuit and a separate diode 51 which since the wafer is at a stabilized temperature, provides a constant Zener breakdown voltage.
Patent GB-1215758-A (GB)
Title: Cable connector
Inventor: ANDREWS ROBERT LEE
IPC: H01R13/658
Filed: 1968-10-16
Abstract: 1,215,758. Two-part couplings. BUNKERRAMO CORP. 16 Oct., 1968 [24 Nov., 1967], No. 49045/68. Heading H2E. A screened multi-core cable connector plug 10 comprises pins 29 retained in an insulating insert 26, for connecting the inner conductor lines, and an outer conductor which includes a metal shell 16, around which is secured, preferably by welding, a band element 38 comprising at least ten axially-extending spring fingers 36. The free ends of said fingers are biased radially outward, their movement in this direction being restricted by an inclined shoulder 54 on the shell 16. A tubular shell 30 on the counterpart socket connector 12 telescopes with the first part and makes contact with bowed portions 42 of the spring fingers, whose number and bias ensure good contact. The shell 16 is provided with keys (56) which fit in grooves (58) in the tubular shell 30 to ensure correct orientation of the connector halves (Fig. 2, not shown).
Patent GB-1155470-A (GB)
Title: Heat-recoverable Closure Member and a process for its manufacture
IPC: F16L47/22
Filed: 1966-11-02
Abstract: 1,155,470. Pipe coverings. RAYCHEM CORP. 2 Nov., 1966 [3 Nov., 1965], No. 49220/66. Heading F2P. [Also in Divisions E2 and H2] A tubular closure member for a cable or pipe junction made of a heat-unstable material has split ridges 18, 20 which are held together by fasteners 30. The ridges are preferably necked and the volume of material in the narrow portion of the ridge may be less than that in the wider portion and the facing portions may be shaped, e.g. with longitudinal serrations (76) (Fig. 10, not shown) or with a vertical offset (42) (Fig. 3, not shown), to prevent longitudinal or radial slip between them, or they may be stepped to interlock with each other. The member may be made from an extruded tube having an inwardly extending ridge along which it is split and then turned inside out (Figs. 11, 12, not shown). The tubular member may vary in diameter along its length (Fig. 6, not shown) and may be in the form of a 90-degree bend (Fig. 8, not shown). It may be made from sheet material having integral protuberances along the edges of opposite sides. Details of processes for making the member from material capable of having an elastic memory are given.
Patent GB-1350119-A (GB)
Title: Fire extinguishers
IPC: A62C35/02
Filed: 1971-10-26
Abstract: 1350119 Automatic fire-extinguishing apparatus GRAVINER (COLNBROOK) Ltd 26 Oct 1971 [29 Oct 1970] 49611/71 Heading ASA Fire extinguishing apparatus comprises an extinguishant container 1 supported by mounting means which includes a member 13 attached to the container and another member 11 for movement relatively therewith when the container weight decreases due to discharge or leakage of extinguishant, and signalling means responsive to said movement for remotely actuating a distant alarm. In Figs. 1, 2 rechargeable container 1 of bromochloro-difluoromethane is suspended from ceiling 2 by bracket 3 via alarm unit 4, and outlet 5 is connected to sprinkler head 9 through a valve comprising a seal held over outlet 5 by lever arms 6, 7 and fusible link 8, (or a quartz-alchohol bulb). Alarm unit 4 comprises tube 11 screw-mounted to bracket 3 and enclosing base 12 with electrical contacts 12a. Plunger 13 attached to container 1 is slidable within tube 11 and has an electrically conductive head. Compression spring 14 acts between this head and an inner flange at the foot of 11, and is such that the filled weight of 1 is sufficient to create a gap between contacts 12a and plunger 13 against the spring action, but when 1 is at least partly empty the spring lifts plunger 13 to bridge contacts 12a. Wires connected to 12a complete an alarm circuit. In a modification, upward movement of 13 is arranged to open-circuit a set of contacts to initiate the alarm.
Patent GB-1035008-A (GB)
Title: High gain fluid amplifier
IPC: F15C1/16
Filed: 1964-12-07
Abstract: 1,035,008. Pure fluid amplifiers. SPERRY RAND CORPORATION. Dec. 7,1964 [Dec. 19, 1963], No. 49687/64. Heading G3H. A high gain fluid amplifier comprises a vorten chamber 13 having a circular wall which increases in diameter from one end to the other and a slot 26 formed in the wall having a width which increases as the diameter of the circular wall increases. The slot 26 is supplied with fluid from a power input channel 22 whereby increasing amounts of fluid flow into the chamber along the arial direction from the smaller end 16. Control nozzles are connected to opposite sides of the slot at the smaller end 16 and output channels, such as 21 lead tangentially from the larger end. Depending on which control nozzle is supplied with a signal, a clockwise or anticlockwise vortex is formed in the chamber to provide an output in one of the channels. The gain is proportional to the length of the vortex chamber. The slot 26 is preferably provided with baffles 27 which slope in the direction of the larger end of the chamber and the wall 17 at the larger end preferably slopes parallel to the baffles.
Patent GB-1310788-A (GB)
Title: Process for the production of dopa
IPC: C07F5/04
Filed: 1971-10-29
Abstract: 1310788 Purification of 3,4-dihydroxyphenylalanine F HOFFMANN-LA ROCHE & CO AG 29 Oct 1971 [30 Oct 1970] 50338/71 Heading C2C A process for the production of dopa from mixtures containing impurities which are difficultly soluble in water or in aqueous solutions in the presence of boric acid or borate salts at a pH of about 7 to 14, which process comprises treating such a mixture in an aqueous medium with boric acid or a borate salt at a pH of about 7 to 14 and, if necessary, lowering the pH of the mixture by treatment with an acidic agent to a range lying between about 7 and lower than 14, within which range the impurities are difficultly soluble, whereupon the dopaboric acid complex formed, which is present in solution, is separated off from insoluble fractions and subsequently subjected to an acidic hydrolysis. The example describes the preparation of L-dopa.
Patent GB-1283081-A (GB)
Title: Quenching and passivation of particulate metals
Inventor: FUQUA BEVERLY BROWN
IPC: B22F1/145
Filed: 1969-10-14
Abstract: 1283081 Modifying the surfaces of metal particles ESSO RESEARCH & ENG CO 14 Oct 1969 [18 Nov 1968] 50391/69 Heading C7U Reduced iron ore particles are passivated by exposing them to steam, steam and inert gas, oxygen and inert gas, oxygen and steam or mixtures thereof in a fluidized bed at a temperature of 90 to 650F. The particles may be quenched in the bed by spraying with water.
Patent GB-1088598-A (GB)
Title: Starter bar assembly for continuous casting apparatus
IPC: B22D11/08
Filed: 1964-12-14
Abstract: 1,088,598. Continuous casting-machines. UNITED STATES STEEL CORPORATION. Dec. 14, 1964 [Dec. 26, 1963], No. 50863/64. Heading B3F. A starter bar 80 carries a chill plate 81 anchored to its end by lugs 94 carried by a plate 93 which may be moved transversely to release the chill plate from the starter bar. The sliding plate is moved to the unlocking position by a piston rod 74, Fig. 6, which may be operated automatically through a limit switch 109 actuated by a feeler 78 engaging the starter bar during its travel. The top of the starter bar has end pieces 86 which may be adjusted to suit the width of the mould. In a modification the sliding plate has keyhole slots which lock or release the chill plate according to the position of the slide.
Patent GB-1127381-A (GB)
Title: Electron accelerator tube
IPC: H01J31/50
Filed: 1965-12-01
Abstract: 1,127,381. Electron beam apparatus. BENDIX CORP. 1 Dec., 1965 [7 Dec., 1964], No. 51013/65. Addition to 950,640. Heading H1D. An electron accelerator device, e.g. in an image intensifier, comprises the single channel or multichannel multiplier structure of Specification 950,610 in which the or each channel is coated with a layer of a uniform resistivity, secondarily-emissive substance across which layer a voltage is applied to produce a longitudinal accelerator field, wherein the accelerator field is selected sufficiently large for the electron gain to return to unity, i.e. in considering the curve of electron gain against voltage, the gain increases above unity, reaches a peak and then returns to unity and the device is operated at this latter point. In this way electron impacts with the channel walls are discouraged and a relatively large acceleration is achieved. The channel coating may consist of lead oxide or a mixture of tin and antimony oxides.
Patent GB-1486359-A (GB)
Title: Telescopic boom for a crane
IPC: B66C23/70
Filed: 1975-12-15
Abstract: 1486359 Telescopic crane booms HARNISCHFEGER CORP 15 Dec 1975 [20 Dec 1974] 51217/75 Heading B8B A telescopic boom for a crane comprises section BIV slidingly received in section BIII, releasable locking means 142 being provided to prevent section BIV from accidentally telescoping into section BIII when the boom is in use. A jam plate 140 is rigidly fixed on the section BIV at or adjacent its base end and is arranged to be engaged by a locking member 141 pivotally mounted at or near the outer end of the section BIII. The member 141 is shown in its locking position but it can be pivoted to an alternate position shown in phantom in Fig. 16. It is retained in either position, as required, by an over-centre tension spring 154.
Patent GB-1091726-A (GB)
Title: Rotary suction filter drum
IPC: D21F1/66
Filed: 1965-12-03
Abstract: 1,091,726. Rotary drum filters for liquids. KARLSTADS MEKANISKA WERSTAD A.B. Dec. 3, 1965 [Dec. 14, 1964], No. 51365/ 65. Heading B1D. A inward flow suction drum has, in the conventional manner, an inner cylinder 2 spaced from the outer perforate casing 1, and axiallyextending walls 3 in the intervening space to form a number of axially-extending cells 4 each having a filtrate opening 5. It also has trailing discharge ducts along the inside of the inner cylinder (one for each cell), the ducts being arranged in several groups disposed axially side by side, each group comprising an even number, not less than four, of such ducts disposed in one plane perpendicular to the drum axis. One half of any duct overlaps a different half of an adjacent duct, so that where, as shown, there are four ducts in one plane, each duct extends around a half, instead of a quarter, of the drum circumference. Suction conditions at the drum surface are thus improved. Filtrate is collected in the drum interior from openings 12. The discharge ducts are accommodated in a single annulus 11 of rectangular cross-section, and the overlapping is effected by providing four co-linear longitudinal partitions arranged diagonally within it and spaced apart at their ends, and a transverse triangular wall 14 or 15 at each end of each partition, these triangular walls being disposed in opposite axial directions alternately when considered in sequence around the drum. Thus, filtrate from any one cell passes through an opening 5, and along the region of triangular cross-section between a partition, the cylinder 2, and one radial wall of the annulus (this region being closed at the entrance end by a wall 15) for a quarter of the circumference, and then traverses past the next wall 15 and flows along the region between the next partition, the wall 11, and the other radial wall of the annulus (this region being closed at its entrance end by one of the walls 14) for the second quarter of the circumference, to an opening 12.
Patent GB-1491196-A (GB)
Title: Method and apparatus for processing photographic silver halide material
IPC: G03D15/02
Filed: 1973-11-07
Abstract: 1491196 Evaporators AGFA-GEVAERT 25 Oct 1974 [7 Nov 1973] 51641/73 Heading BIB [Also in Division G2] In an apparatus for processing photographic silver halide material including a developing station 11, a fixing station 12, a washing station 13 and a drying station 14 through which films are moved by means of a roller system 15, 16, liquid overflowing at 19 and 20 passes through a conduit 22 to an evaporator 23 in which the water in the liquid is evaporated. The steam is -passed through an outlet 31 and the residue is collected in a vessel 33. The liquid overflowing at 21 may be led to waste or may join the liquids from the overflows 19, 20 in the conduit 22. A vessel 52 may be associated with an automatic valve 55, see Fig. 3, to keep the liquid in the evaporator 23 at a constant level. The evaporator 23 includes a screw 26 disposed in a casing (24) surrounded by a heating element (25), Fig. 2 (not shown), the temperature being kept lower than 130C, The steam from outlet 31 is passed through ribbed heat exchanger tubes 34 in the drying station 14 whereby the heat from the tubes is used to dry the film and the water may be run to waste at 39 or returned to the washing station 13 through a conduit 37. The water may also be passed to stations 11 and 12 to heat the liquid there. In a second embodiment, Fig. 3 the evaporator has a troughed container for holding the liquid through which runs an endless belt of water-absorbent fibrous material which is heated by a stationary heating member. The container may be subject to a vacuum to reduce the boiling point of the water. In small batch processing systems waste liquids may be heated in an oven. Liquid may be sprayed onto the photographic material and may be removed from the material by rollers.